| 摘要 |
In a foldable box including a bottom plate integrally and bendably connected to side plates, both formed of a flexible material, the adjacent side plates are divided along their opposing side edges, one of said adjacent side plates being integrally and bendably connected at its opposing side edge with a gore plate formed of the same material, and a guide groove for slidably receiving said gore plate being formed in a wall of an opposing edge of said other side plate. Further, one of said gore plate and said wall of said opposing edge of said other side wall is provided with an associated hole therethrough in the thickness-wise direction, and the other is integrally provided with an engaging piece which is formed of the same material and is bendable in the thickness-wise direction. Said engaging piece is fitted in said associated hole, when said gore plate is fitted into the deepest position of said guide groove.
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